Evolution

 _______ is the method scientists use to determine the actual age of a fossil.

• Absolute/Radiometric
• Relative

__________ is the method scientists use to determine whether one fossil is older than another fossil

• Absolute/radiometric Dating
• Relative Dating

Darwin wrote that organisms with traits that are best suited to the environment will ________________

• increase in number
  
• become extinct
  

Evolution occurs in a _____________. 

• single organism
• whole population

Two populations of the Maumoo salamander are separated by the South River in Waynesboro, Va.  Because of this, the populations cannot interbreed.  This is an example of .......

• Behavioral isolation
• Natural selection
• Artificial selection
• Geographic isolation

_____________________ is a group of organisms that can interbreed and produce fertile offspring.

• A population
• A species

__________________ is a group of organisms of the same species that live in the same area at the same time and compete for resources.

• A population
• A species

The separation of a group of individuals from the rest of the population is referred to as 

• genetic drift
• natural selection
• geographic isolation
• survival of the fittest

Which statement best describes the process of evolution?

• Populations can survive in different locations on earth
• Environmental conditions limit the number of species on Earth
• Populations grow when resources are abundant
• Common traits of a species can change over time

What is suggested by the similarity of early embryos of different species of vertebrates?

• no evolutionary relationships between the groups
• recent common ancestry
• similar environments in the past
• evolution from a distant common ancestor